Benjamin f



PATENTE!) Milf/MM@ VBENJAMIN F. S'IEPHEINS,l OF BRKLYN, NEW YORK.

' Leners Peeeeet Ne. 72,108, ezeeeez December 1o, 1867.

IMPROVEMENT IN EYB-CUPS.

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TO ALL WHOM IT MAY GONCERN: 'i

Be it known that "I, BENJAMIN F. STEPnENs, of Brooklyn, ntl-ie county ofKings, and State of New York,

aeve invented, made, und applied to use 'a certain new and useful Eyesight Improver; sind I do hereby declare the following to be a. full, clean-und exact description of thesalne, referei'xeebeing hund to the annexed drawing, lmaking partl of this specification, wherein I have represented :t purtiztl horizontal section of the said device.

Eye-cups have heretofore been merle to exercise the eye 'by atmospheric-'sutiong' so that vthe sight may be improved; but as thesaid cups have been used singly, or disconnected, from'achfother, o person .was apt to injure the equnlity'bf strength inthe eye, rendering one eye. stronger' and .farther-sighted than the other, in consequence of the eye-cup being applied more to one eye than to the other, or else unlel n diierent utmosplier'ic pressure. y v

The nature of my said invention consistsv in a pair-of eye-bowls,ieonnecterl to an exlmustion-bug er b nll by an nir-tube, se that the same pressure will be exerted simultaneously-on: the two eyes, thereby preventing unequal action, and insuring aiuniform ,improvement in the sight by the exercise resulting from the exhaustion of the bowls. j l v In the drawing, a et represent bowls, of wood, hard rubber, ivory, cr'silnilar material, of a. shape adapted to theeye when the lids are closed. b b are hol-lois' neek's or tubes, passingto the exhaustion-'bag or balle, that is of suitable size and shape, and is to be compressed, to expel the atmosphere, and by its expansion produce the suction required for the bowls in their action on the eyes, thusinsuring uniformity of pressure und action throughout the apparatus. l i

What lclaiui, und desire to secure by Letters Patent, is

A pair of bowls, united by tubes or necks to an exhaustion-bag or ball, as und for the purposes set forth.

In witness whereof, I have .hereunto set my signature, this ninth dey -of September, A. D.l 1867,'

BENJ. F. STEPHENS.

Witnesses:

GEO. D. WALKER, Onis. H. SMITH. 

